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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1302 // convention requires to put the pointer to the return value slot into | 1302 // convention requires to put the pointer to the return value slot into |
1303 // rcx (rcx must be preserverd until CallApiFunctionAndReturn). Saves | 1303 // rcx (rcx must be preserverd until CallApiFunctionAndReturn). Saves |
1304 // context (rsi). Clobbers rax. Allocates arg_stack_space * kPointerSize | 1304 // context (rsi). Clobbers rax. Allocates arg_stack_space * kPointerSize |
1305 // inside the exit frame (not GCed) accessible via StackSpaceOperand. | 1305 // inside the exit frame (not GCed) accessible via StackSpaceOperand. |
1306 void PrepareCallApiFunction(int arg_stack_space); | 1306 void PrepareCallApiFunction(int arg_stack_space); |
1307 | 1307 |
1308 // Calls an API function. Allocates HandleScope, extracts returned value | 1308 // Calls an API function. Allocates HandleScope, extracts returned value |
1309 // from handle and propagates exceptions. Clobbers r14, r15, rbx and | 1309 // from handle and propagates exceptions. Clobbers r14, r15, rbx and |
1310 // caller-save registers. Restores context. On return removes | 1310 // caller-save registers. Restores context. On return removes |
1311 // stack_space * kPointerSize (GCed). | 1311 // stack_space * kPointerSize (GCed). |
1312 void CallApiFunctionAndReturn(Address function_address, | 1312 void CallApiFunctionAndReturn(Register function_address, |
1313 Address thunk_address, | 1313 Address thunk_address, |
1314 Register thunk_last_arg, | 1314 Register thunk_last_arg, |
1315 int stack_space, | 1315 int stack_space, |
1316 Operand return_value_operand, | 1316 Operand return_value_operand, |
1317 Operand* context_restore_operand); | 1317 Operand* context_restore_operand); |
1318 | 1318 |
1319 // Before calling a C-function from generated code, align arguments on stack. | 1319 // Before calling a C-function from generated code, align arguments on stack. |
1320 // After aligning the frame, arguments must be stored in rsp[0], rsp[8], | 1320 // After aligning the frame, arguments must be stored in rsp[0], rsp[8], |
1321 // etc., not pushed. The argument count assumes all arguments are word sized. | 1321 // etc., not pushed. The argument count assumes all arguments are word sized. |
1322 // The number of slots reserved for arguments depends on platform. On Windows | 1322 // The number of slots reserved for arguments depends on platform. On Windows |
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1615 masm->popfq(); \ | 1615 masm->popfq(); \ |
1616 } \ | 1616 } \ |
1617 masm-> | 1617 masm-> |
1618 #else | 1618 #else |
1619 #define ACCESS_MASM(masm) masm-> | 1619 #define ACCESS_MASM(masm) masm-> |
1620 #endif | 1620 #endif |
1621 | 1621 |
1622 } } // namespace v8::internal | 1622 } } // namespace v8::internal |
1623 | 1623 |
1624 #endif // V8_X64_MACRO_ASSEMBLER_X64_H_ | 1624 #endif // V8_X64_MACRO_ASSEMBLER_X64_H_ |
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